Fritzl finds friendship in prison

Cellar rapist Josef Fritzl has befriended a notorious killer of seven people in Austria's maximum security Stein jail.

The Sun reports Fritzl, who imprisoned his daughter in a dungeon for 24 years, has become close friends with Harald Sassak. They are both serving life sentences.

Fritzl was convicted of killing one of the seven children he fathered by daughter Elisabeth, whom he raped more than 3000 times.

Sassak was known as "The Gas Man" because he posed as the employee of an energy firm. He throttled seven pensioners, raping one of them, before ransacking their homes for cash and jewellery.

The Sun reported Frtizl, 74, has also befriended triple killer Guenter Lorenz, who shot two women and a man in a gruesome execution, and former Olympic skater Wolfgang Schwarz, who trafficked girls into prostitution.

A prison officer said: "They are quite a grim little gang. No one is in here because they're an angel but this lot are the dregs of the world."